(Closed) How to keep from getting scammed!

I posted in the classifieds of wedding bee for about the 4th or 5th time about 3 weeks ago and I got a response from a man that said he would pay me more than what I was asking (first red flag). His grammer was horrible (2nd red flag) and he wanted to mail me a check (3rd red flag). Well I went along with it for a few days when he sent me a message saying that he was going to have a woman that owed him money right me a check. After that message he said that the woman had made a mistake and sent me $1900 MORE than what he owed and his daughter had JUST (in the last hour) been in a car accident and he needed me to send him the extra money immediately!!! When I turned it over to the postal inspector I was told to tell him that I wouldn’t be cashing the check. The buyer then proceeded to get angry with me and tell me that he worked for the FBI and that he was going to turn me in because he knows for a fact I already cashed the check (which is a lie, the postal inspector has the check). This was a ton of red flags.. I am writing all of this to say, WATCH who you sell to! DO NOT cash checks without finding out if they are real or not. The bank doesn’t always catch it immediately and when the check bounces and you’ve sent some random address $2000.. the bank will make YOU pay it back. I love this site and they have some really good people on here so just be careful and ask questions at the bank or post office, they don’t want you to get scammed either!! 🙂